大概的错误类型：

- AttributeError: 'str' object has no attribute 'decode'

- UnicodeDecodeError: 'utf-8' codec can't decode byte 0xc5 in position 13: invalid continuation byte

大概的输出应该长这样

- C:\Users\DELL>E:\App\py_work_3.7\Web\socket\netcat\mycat_sever.py

b'\r\nWindows IP \xc5\xe4\xd6\xc3\r\n\r\n\r\n\xd2\xd4\xcc\xab\xcd\xf8\xca\xca\xc5\xe4\xc6\xf7 VirtualBox Host-Only Network:\r\n\r\n \xc1\xac\xbd\xd3\xcc\xd8\xb6\xa8\xb5\xc4 DNS \xba\xf3\xd7\xba . . . . . . . : \r\n \xb1\xbe\xb5\xd8\xc1\xb4\xbd\xd3 IPv6 \xb5\xd8\xd6\xb7. . . . . . . . : fe80::48cd:403c:b18c:b807%2\r\n IPv4 \xb5\xd8\xd6\xb7 . . . . . . . . . . . . : 192.168.56.1\r\n \xd7\xd3\xcd\xf8\xd1\xda\xc2\xeb . . . . . . . . . . . . : 255.255.255.0\r\n \xc4\xac\xc8\xcf\xcd\xf8\xb9\xd8. . . . . . . . . . . . . : \r\n\r\n\xce\xde\xcf\xdf\xbe\xd6\xd3\xf2\xcd\xf8\xca\xca\xc5\xe4\xc6\xf7 WLAN:\r\n\r\n \xc3\xbd\xcc\xe5\xd7\xb4\xcc\xac . . . . . . . . . . . . : \xc3\xbd\xcc\xe5\xd2\xd1\xb6\xcf\xbf\xaa\xc1\xac\xbd\xd3\r\n \xc1\xac\xbd\xd3\xcc\xd8\xb6\xa8\xb5\xc4 DNS \xba\xf3\xd7\xba . . . . . . . : \r\n\r\n\xce\xde\xcf\xdf\xbe\xd6\xd3\xf2\xcd\xf8\xca\xca\xc5\xe4\xc6\xf7 \xb1\xbe\xb5\xd8\xc1\xac\xbd\xd3* 1:\r\n\r\n \xc3\xbd\xcc\xe5\xd7\xb4\xcc\xac . . . . . . . . . . . . : \xc3\xbd\xcc\xe5\xd2\xd1\xb6\xcf\xbf\xaa\xc1\xac\xbd\xd3\r\n \xc1\xac\xbd\xd3\xcc\xd8\xb6\xa8\xb5\xc4 DNS \xba\xf3\xd7\xba . . . . . . . : \r\n\r\n\xce\xde\xcf\xdf\xbe\xd6\xd3\xf2\xcd\xf8\xca\xca\xc5\xe4\xc6\xf7 \xb1\xbe\xb5\xd8\xc1\xac\xbd\xd3* 11:\r\n\r\n \xc3\xbd\xcc\xe5\xd7\xb4\xcc\xac . . . . . . . . . . . . : \xc3\xbd\xcc\xe5\xd2\xd1\xb6\xcf\xbf\xaa\xc1\xac\xbd\xd3\r\n \xc1\xac\xbd\xd3\xcc\xd8\xb6\xa8\xb5\xc4 DNS \xba\xf3\xd7\xba . . . . . . . : \r\n\r\n\xd2\xd4\xcc\xab\xcd\xf8\xca\xca\xc5\xe4\xc6\xf7 \xd2\xd4\xcc\xab\xcd\xf8:\r\n\r\n \xc1\xac\xbd\xd3\xcc\xd8\xb6\xa8\xb5\xc4 DNS \xba\xf3\xd7\xba . . . . . . . : \r\n \xb1\xbe\xb5\xd8\xc1\xb4\xbd\xd3 IPv6 \xb5\xd8\xd6\xb7. . . . . . . . : fe80::2c17:be54:7db6:f701%12\r\n IPv4 \xb5\xd8\xd6\xb7 . . . . . . . . . . . . : 192.168.1.104\r\n \xd7\xd3\xcd\xf8\xd1\xda\xc2\xeb . . . . . . . . . . . . : 255.255.255.0\r\n \xc4\xac\xc8\xcf\xcd\xf8\xb9\xd8. . . . . . . . . . . . . : 192.168.1.1\r\n'

中文全部变成了特定编码，而数字和英文不受影响

原理1

image.png

原理2

在windows中通过subprocess调用cmd命令行，命令中包含中文是很令人头痛的事。由于cmd控制台用的是gbk编码，而python用的是utf-8。utf-8的字符串，在gbk编码的控制台上运行，当然会运行不了。假如再要你兼容繁体版的windows，此时更麻烦了。还好python提供了本地化接口

本地化

>>> import locale

>>> locale.getdefaultlocale()

('zh_CN', 'cp936')123

示例

import locale

cmd = cmd.encode(locale.getdefaultlocale()[1])

subprocess.Popen(cmd)

↑ 这个我没看太明白 不过还好还有一个例子↓

import subprocess

import sys

cmd = "cmd.exe"

begin = 101

end = 102

while begin < end:

##blow for windows shell chinese show##

#reload(sys)

#sys.setdefaultencoding('utf-8')

print "excution result start :\n"

child = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE, stderr=subprocess.PIPE)

print "ping -n 1 -w 100 192.168.1." + str(begin) + "\n"

child.stdin.write("ping -n 1 -w 100 192.168.1." + str(begin) + "\n")

child.stdin.close()

child.wait()

print "excution result end:\n"

begin += 1

#print child.stdout.readlines()

for line in child.stdout.readlines():

##blow for pycharm and cygwin show chinese#

output = line.decode('cp936').encode('utf-8')

print "%s\n" % output

Cloudox_@Cloudox_

例子看不看都行，最重要的一句是

output = line.decode('cp936').encode('utf-8')

我在用完这一句后就神清气爽了↓

def run_command(ex):

output = ''

try:

output = subprocess.check_output(ex, stderr=subprocess.STDOUT, shell=True)

except:

print("error")

# print(output)

out = output.decode('cp936').encode('utf-8')

return out